8 papers
Multimode optical parametric amplification in the phase-sensitive regime
Gaetano Frascella, Roman V. Zakharov, Olga V. Tikhonova +1
Phase-sensitive optical parametric amplification of squeezed states helps to overcome detection loss and noise and thus increase the robustness of sub-shot-noise sensing. Because s…
Dark-state and loss-induced phenomena in the quantum-optical regime of -type three-level systems
H. Rose, D. V. Popolitova, O. V. Tikhonova +2
The interaction of matter with quantum light leads to phenomena which cannot be explained by semiclassical approaches. Of particular interest are states with broad photon number di…
Managing spectral properties and Schmidt mode content of squeezed vacuum light using sum-frequency converter
Vladislav Sukharnikov, Polina Sharapova, Olga Tikhonova
Capabilities of quantum optical SFG-gate seeded by squeezed light are investigated in the frame of frequency Schmidt modes. Methods to manage and manipulate extensively the propert…
Experimental reconstruction of spatial Schmidt modes for a wide-field SU(1,1) interferometer
Gaetano Frascella, Roman V. Zakharov, Olga V. Tikhonova +1
We study the spatial mode content at the output of a wide-field SU(1,1) interferometer, i.e. a nonlinear interferometer comprising two coherently-pumped spatially-multimode optical…
Properties of bright squeezed vacuum at increasing brightness
P. R. Sharapova, G. Frascella, M. Riabinin +6
Bright squeezed vacuum (BSV) is a non-classical macroscopic state of light, which can be generated through high-gain parametric down-conversion or four-wave mixing. Although BSV is…
Wide-field SU(1,1) interferometer
G. Frascella, E. E. Mikhailov, N. Takanashi +3
An interferometer uses a sequence of two optical parametric amplifiers for achieving sub-shot-noise sensitivity to a phase shift introduced in between. We present t…